CN202182713U - Axial displacement monitoring protector - Google Patents
Axial displacement monitoring protector Download PDFInfo
- Publication number
- CN202182713U CN202182713U CN2011202892274U CN201120289227U CN202182713U CN 202182713 U CN202182713 U CN 202182713U CN 2011202892274 U CN2011202892274 U CN 2011202892274U CN 201120289227 U CN201120289227 U CN 201120289227U CN 202182713 U CN202182713 U CN 202182713U
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- China
- Prior art keywords
- circuit
- module
- main control
- control unit
- axial displacement
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- Expired - Fee Related
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 32
- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 230000001012 protector Effects 0.000 title abstract 4
- 238000001914 filtration Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 9
- 230000003321 amplification Effects 0.000 abstract description 3
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 2
- 238000004458 analytical method Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model relates to an axial displacement monitoring protector used for measuring the axial displacement of rotary machinery. The protector comprises a signal acquisition circuit (1), a main control unit (2) and an executive circuit (3) which are connected in sequence, wherein the signal acquisition circuit (1) comprises a displacement sensor (1.1), a proportion circuit (1.2), a filter circuit (1.3), a linear amplification circuit (1.4), a power detection circuit (1.5) and an A/D module (1.6), the displacement sensor (1.1), the proportion circuit (1.2), the filter circuit (1.3) and the A/D module (1.6) are connected in series, the linear amplification circuit (1.4) and the power detection circuit (1.5) are connected in series and the connected with the filter circuit (1.3) in parallel, and the output end of the A/D module (1.6) is connected with a main control unit (2). The axial displacement monitoring protector is simple and intuitive in operation and can conduct high-precision online data acquisition, storage and analysis.
Description
Technical field
The utility model relates to a kind of axial displacement monitoring and protecting appearance, the axial displacement that is used to measure rotating machinery.
Background technology
At present, in the steam turbine operation process, need to use the monitoring and protecting appearance that it is carried out monitoring and protecting; Like axial displacement monitoring and protecting appearance, conventional axial displacement monitoring and protecting appearance reliability, long-time stability are not high, and integrated level is low; Can't high-precisionly carry out online data measures; Adopt pilot lamp to carry out the situation indication in the axial displacement monitoring and protecting appearance of routine, directly perceived inadequately, and setting operation is very inconvenient.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency, a kind of simple and direct-viewing operation is provided and can carries out the axial displacement monitoring and protecting appearance that high-precision online data is measured, stored and analyze.
The purpose of the utility model is achieved in that a kind of axial displacement monitoring and protecting appearance; Said protection appearance includes signal acquisition circuit, main control unit and the executive circuit that connects successively; Said signal acquisition circuit includes displacement transducer, ratio circuit, filtering circuit, linear amplifier circuit, power sense circuit and A/D module; Said displacement transducer, ratio circuit, filtering circuit and A/D module are connected successively; Said linear amplifier circuit and power sense circuit series connection back are in parallel with filtering circuit, and the output terminal of said A/D module links to each other with main control unit;
The utility model axial displacement monitoring and protecting appearance, the output terminal of said ratio circuit is through the external registering instrument of BUF output circuit.
The utility model axial displacement monitoring and protecting appearance; Said executive circuit includes display driver circuit, people's machine circuit, photoelectric isolating circuit, the dangerous output circuit of warning, D/A module, current output circuit and communication module; Said main control unit links to each other with people's machine circuit through display driver circuit; Said main control unit links to each other with the dangerous output circuit of reporting to the police through photoelectric isolating circuit, and said main control unit links to each other with current output circuit through the D/A module, and said communication module links to each other with main control unit.
Compared with prior art, the beneficial effect of the utility model is:
The utility model can react online measurement data intuitively, exactly, has that intelligent precision is high, visual and workable, alarming value, dangerous values can set, use characteristics such as correct easy arbitrarily.The utility model effectively controlled static or dynamically after zero drift, can be according to the on-the-spot required arbitrarily selected measurement range of user, shift value or magnitude of voltage can switch through the keyboard of people's machine circuit on the spot, greatly facilitates the user installation debugging and use.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model axial displacement monitoring and protecting appearance.
Wherein:
Displacement transducer 1.1, ratio circuit 1.2, filtering circuit 1.3, linear amplifier circuit 1.4, power sense circuit 1.5, A/D module 1.6, BUF output circuit 1.7;
Display driver circuit 3.1, people's machine circuit 3.2, photoelectric isolating circuit 3.3, report to the police dangerous output circuit 3.4, D/A module 3.5, current output circuit 3.6, communication module 3.7.
Embodiment
Referring to Fig. 1; A kind of axial displacement monitoring and protecting appearance that the utility model relates to; Said protection appearance includes signal acquisition circuit 1, main control unit 2 and the executive circuit 3 that connects successively; Said signal acquisition circuit 1 includes displacement transducer 1.1, ratio circuit 1.2, filtering circuit 1.3, linear amplifier circuit 1.4, power sense circuit 1.5, A/D module 1.6 and BUF output circuit 1.7; Said displacement transducer 1.1, ratio circuit 1.2, filtering circuit 1.3 and A/D module 1.6 are connected successively; Said linear amplifier circuit 1.4 is in parallel with filtering circuit 1.3 with power sense circuit 1.5 series connection backs, and the output terminal of said ratio circuit 1.2 is through BUF output circuit 1.7 external registering instruments, and the output terminal of said A/D module 1.6 links to each other with main control unit 2;
Said executive circuit 3 includes display driver circuit 3.1, people's machine circuit 3.2, photoelectric isolating circuit 3.3, report to the police dangerous output circuit 3.4, D/A module 3.5, current output circuit 3.6 and communication module 3.7; Said main control unit 2 links to each other with people's machine circuit 3.2 through display driver circuit 3.1; Said main control unit 2 links to each other with the dangerous output circuit 3.4 of reporting to the police through photoelectric isolating circuit 3.3; The dangerous output circuit 3.4 of said warning can external system protection device; Said main control unit 2 links to each other with current output circuit 3.6 through D/A module 3.5, and said current output circuit 3.6 external DCS host computers are realized the collection of online signal; Said communication module 3.7 links to each other with main control unit 2, realizes being connected with extraneous communication.
During use, the signal of displacement transducer 1.1 input ratio circuit 1.2 converts linear tributary voltage to through filtering circuit 1.3, linear amplifier circuit 1.4, power sense circuit 1.5 and is directly proportional with displacement on the measured point; The signal of displacement transducer 1.1 is simultaneously via external registering instrument behind the ratio circuit 1.2 input BUF output circuits.
Ratio circuit 1.2 adopts the anti-phase input to amplify, owing to add degree of depth negative feedback, gain stability is high; Improved antijamming capability greatly; Voltage signal after voltage amplification with voltage transitions and the linear dc signal voltage of displacement, amplifies behind filtering circuit 1.3 and imports A/D module 1.6 again and carry out the A/D conversion; By the digital signal input main control unit 2 after 1.6 conversions of A/D module; Main control unit 2 carries out parameter setting with data parameters via display driver circuit 3.1 input people machine circuits 3.2 through computings, simultaneously these data via D/A module 3.5 with digital simulationization; See the 4-20mA electric current off through current output circuit 3.6, send into the DCS master system and realize remote monitoring.When measured value surpassed dangerous setting value, via dangerous output circuit 3.4 danger signals of reporting to the police, simultaneously, the man-machine interface hazard lamp of people's machine circuit 3.2 was bright, and carries out data transmission by communication module 3.7 via photoelectric isolating circuit 3.3 for main control unit 2.
Claims (3)
1. axial displacement monitoring and protecting appearance; It is characterized in that: said protection appearance includes signal acquisition circuit (1), main control unit (2) and the executive circuit (3) that connects successively; Said signal acquisition circuit (1) includes displacement transducer (1.1), ratio circuit (1.2), filtering circuit (1.3), linear amplifier circuit (1.4), power sense circuit (1.5) and A/D module (1.6); Said displacement transducer (1.1), ratio circuit (1.2), filtering circuit (1.3) and A/D module (1.6) are connected successively; Said linear amplifier circuit (1.4) and power sense circuit (1.5) series connection back are in parallel with filtering circuit (1.3), and the output terminal of said A/D module (1.6) links to each other with main control unit (2).
2. a kind of according to claim 1 axial displacement monitoring and protecting appearance, it is characterized in that: the output terminal of said ratio circuit (1.2) is through the external registering instrument of BUF output circuit (1.7).
3. a kind of according to claim 1 or claim 2 axial displacement monitoring and protecting appearance; Institute is characterized in that: said executive circuit (3) includes display driver circuit (3.1), people's machine circuit (3.2), photoelectric isolating circuit (3.3), the dangerous output circuit (3.4) of reporting to the police, D/A module (3.5), current output circuit (3.6) and communication module (3.7); Said main control unit (2) links to each other with people's machine circuit (3.2) through display driver circuit (3.1); Said main control unit (2) links to each other with the dangerous output circuit (3.4) of reporting to the police through photoelectric isolating circuit (3.3); Said main control unit (2) links to each other with current output circuit (3.6) through D/A module (3.5), and said communication module (3.7) links to each other with main control unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202892274U CN202182713U (en) | 2011-08-10 | 2011-08-10 | Axial displacement monitoring protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202892274U CN202182713U (en) | 2011-08-10 | 2011-08-10 | Axial displacement monitoring protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202182713U true CN202182713U (en) | 2012-04-04 |
Family
ID=46175746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202892274U Expired - Fee Related CN202182713U (en) | 2011-08-10 | 2011-08-10 | Axial displacement monitoring protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202182713U (en) |
-
2011
- 2011-08-10 CN CN2011202892274U patent/CN202182713U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20140810 |
|
| EXPY | Termination of patent right or utility model |